i think betting small on the river would be a good option for the JT hand at around 14:30. why consider bluff catching when we can bluff him out the pot at our own price? doubt he's calling any K/Q high.

I think in this spot you cannot fold, there are as many combos of 44 and JJ, and sometimes some double pairs played strangly, backdoor draws +Top paire etc in his range. He seemed very tight, so 8T is relatively rare in his range there.

it s different if you had 44, that would be a spot where fold a set is probably not a mistake.